Logic

Logic or logic circuits are electronic circuits that need two or more input signals to complete a logical operation. In essence, their output is dependent upon their input – and they will not be able to operate on their own on facts; they have to be told what these are. A common example of providing facts to logic circuits is when opening and closing a switch. Whether the switch is opened or closed – or turned on or off, it tells the circuit what the state of the door is.

Logic circuits are also described as gates or switching circuits that are utilized in digital computers and similar devices. They are also used in telephone exchanges, calculators, and all other applications that have two-state systems.

These electronic circuits behave like programming language methods or functions. The only obvious difference is that logic circuits produce multiple outputs.

Logic circuitry is categorized into two: state circuitry and combinational circuitry.

Logic Circuitry Types

  • State circuitry has memory that is embedded in its circuitry, which is why its output is based not only on the input but also on historical inputs. It performs or works like an object method, with values that are dependent on instance variables or on the state of the object.
    It can recall program counters, registers, memory, and other similarly essential information.
    A state circuitry’s basic element is a flip flop, which keeps one bit of data that can be incorporated into multiple flip flops thus creating a register or a multi-bit state element.
  • Combinational circuitry is logic circuitry that performs like a simple function. It bases its output on the input’s present values. Theoretically, this circuitry depends on logic gates – inverters, OR gates, XOR gates, and AND gates.

Basic Logic Circuits

The three basic logic circuits are AND, NOT, and OR. When they are combined, they form a new circuit, like NAND (a combination of NOT and AND circuits).

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Parts from Logic Category

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MC14008BCPG from On Semiconductor
On Semiconductor

4 BIT BINARY FULL ADDER, 115NS, DIP16; Logic Family / Base Number:MC14008; Supply Voltage Min:3V; Supply Voltage Max:18V; Input Voltage Min:3V; Input Voltage Max:18V; No. of Bits:4bit; Propagation Delay:115ns; Logic Case Style:DIP RoHS Compliant: Yes

Nexperia

LOGIC, BINARY FULL ADDER, 4BIT, SOIC-16; Logic Family / Base Number:74HC283; Supply Voltage Min:2V; Supply Voltage Max:6V; Input Voltage Min:0V; Input Voltage Max:6V; No. of Bits:4bit; Propagation Delay:-; Logic Case Style:SOIC; No. RoHS Compliant: Yes

CD4050BD from Texas Instruments
Texas Instruments

NON INVERTING BUFFER/CONVERTER, SOIC-16; Logic Family / Base Number:CD4050; Logic Device Type:Buffer, Non Inverting; Logic Case Style:SOIC; No. of Pins:16Pins; Supply Voltage Min:3V; Supply Voltage Max:18V; Logic IC Family:CD4000 RoHS Compliant: Yes

SN74AVC16T245DGGR from Texas Instruments
Texas Instruments

NON INVERTING TRANSCEIVER, TSSOP-48; Logic Family / Base Number:74AVC16T245; Logic Device Type:Transceiver, Non Inverting; Logic Case Style:TSSOP; No. of Pins:48Pins; Supply Voltage Min:1.2V; Supply Voltage Max:3.6V; Product Range:- RoHS Compliant: Yes

SN74AVC2T45DCTR from Texas Instruments
Texas Instruments

NON INVERTING TRANSCEIVER, SSOP-8; Logic Family / Base Number:74AVC2T245; Logic Device Type:Transceiver, Non Inverting; Logic Case Style:SSOP; No. of Pins:8Pins; Supply Voltage Min:1.2V; Supply Voltage Max:3.6V; Logic IC Family:74AVCRoHS Compliant: Yes

74ACT16244DGGR from Texas Instruments
Texas Instruments

NON INVERTING BUFFER, TSSOP-48; Logic Family / Base Number:74ACT16244; Logic Device Type:Buffer, Non Inverting; Logic Case Style:TSSOP; No. of Pins:48Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Logic IC Family:74ACT RoHS Compliant: Yes

SN74AHCT1G125DBVT from Texas Instruments
Texas Instruments

NON INVERTING BUS BUFFER GATE SOT23-5; Logic Family / Base Number:74AHCT1G125; Logic Device Type:Buffer, Non Inverting; Logic Case Style:SOT-23; No. of Pins:5Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Product Range:- RoHS Compliant: Yes

SN74LVC1G125DCKT from Texas Instruments
Texas Instruments

NON INVERTING BUS BUFFER GATE SC-70-5; Logic Family / Base Number:74LVC1G125; Logic Device Type:Buffer, Non Inverting; Logic Case Style:SC-70; No. of Pins:5Pins; Supply Voltage Min:1.65V; Supply Voltage Max:5.5V; Product Range:- RoHS Compliant: Yes

SN74LVC1G17DCKT from Texas Instruments
Texas Instruments

SCHMITT TRIGGER BUFFER, SC-70-5; Logic Family / Base Number:74LVC1G17; Logic Device Type:Buffer, Schmitt Trigger; Logic Case Style:SC-70; No. of Pins:5Pins; Supply Voltage Min:1.65V; Supply Voltage Max:5.5V; Logic IC Family:74LVC RoHS Compliant: Yes

NC7SP17P5X from On Semiconductor
On Semiconductor

SCHMITT TRIGGER BUFFER, SC-70-5; Logic Family / Base Number:-; Logic Device Type:Buffer, Schmitt Trigger; Logic Case Style:SC-70; No. of Pins:5Pins; Supply Voltage Min:900mV; Supply Voltage Max:3.6V; Logic IC Family:NC7S RoHS Compliant: Yes

MC74HCT125ADR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74HCT125; Logic Device Type:Buffer / Line Driver; Logic Case Style:SOIC; No. of Pins:14Pins; Supply Voltage Min:2V; Supply Voltage Max:6V; Logic IC Family:74HCT; Logic IC Base Number:74125; Product Range:- RoHS Compliant: Yes

MC74HCT244ADWR2G. from On Semiconductor
On Semiconductor

LOG CMOS BUS INTRFCE OCTL ROHS COMPLIANT: YES

MC74ACT244DTR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74ACT244; Logic Device Type:Buffer / Line Driver; Logic Case Style:TSSOP; No. of Pins:20Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Logic IC Family:74ACT; Logic IC Base Number:74244 RoHS Compliant: Yes

MC74ACT244DWR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74ACT244; Logic Device Type:Buffer / Line Driver; Logic Case Style:SOIC-W; No. of Pins:20Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Logic IC Family:74ACT; Logic IC Base Number:74244 RoHS Compliant: Yes

MC74ACT245DWR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74ACT245; Logic Device Type:Transceiver, Bidirectional; Logic Case Style:SOIC-W; No. of Pins:20Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Logic IC Family:74ACT; Logic IC Base Number:74245 RoHS Compliant: Yes

MC74ACT541DWR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74ACT541; Logic Device Type:Buffer / Line Driver, Non Inverting; Logic Case Style:SOIC; No. of Pins:20Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Logic IC Family:74ACT; Product Range:- RoHS Compliant: Yes

MC74HC245ADWR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74HC245; Logic Device Type:Transceiver, Non Inverting; Logic Case Style:WSOIC; No. of Pins:20Pins; Supply Voltage Min:2V; Supply Voltage Max:6V; Logic IC Family:74HC; Logic IC Base Number:74245 RoHS Compliant: Yes

MC74LCX07DTR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74LCX07; Logic Device Type:Buffer / Driver; Logic Case Style:TSSOP; No. of Pins:14Pins; Supply Voltage Min:2V; Supply Voltage Max:5.5V; Logic IC Family:74LCX; Logic IC Base Number:7407; Product Range:- RoHS Compliant: Yes

MC74LCX541DTR2G. from On Semiconductor
On Semiconductor

Logic Family / Base Number:74LCX541; Logic Device Type:Buffer, Non Inverting; Logic Case Style:TSSOP; No. of Pins:20Pins; Supply Voltage Min:2V; Supply Voltage Max:3.6V; Logic IC Family:74LCX; Logic IC Base Number:74541 RoHS Compliant: Yes

MC74LVX4245DWR2G. from On Semiconductor
On Semiconductor

Logic Device Type:Transceiver, Translating; Logic Case Style:SOIC-W; No. of Pins:24Pins; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V; Logic IC Family:74LVX; Operating Temperature Min:-40°C; Operating Temperature Max:85°C RoHS Compliant: Yes

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